Elevator bell-signal.



.No. 828.746. PATENTBD AUG. 14,1906.

' J. KING.

ELEVATOR BELL SIGNAL. APPLICATION FILED MAY 23. 1905.

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No. 828,746. PATENTBD AUG. 14, 1906.

I J. KING.

ELEVATOR BELL SIGNAL.

APPLIOATION FILED mnzs. 1905.

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JERRY KING, Ois'r. PAUL, MINNESOTA.

ELEVATOR BELL-SIGNAL.

Specification of Letters Patent.

' Patented Aug. 14, 1.906.

Application filed May 23, 1905- Berial N0. ZGLBZZ.

To all whom it may concern:

Be it known that I, JERRY KING, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented new and useful Improve ments in Elevator Bell-Signals, of which the following is a specification.

My invention relates to elevator-signals, and has for its object the provision of improved means for maintaining electric connection between elevators and analogous lifting devices and points extraneous to said devices.

A further object of the invention is the provision of means carried by the elevator, and consequently within the control of the elevator operator, for rendering the signal inoperati've when desired.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

. In the accompanying drawings, Figure 1 is a perspective view of a signaling device constructed in accordance with my invention.

Fi 2 is an end view looking toward the rig t of Fig. 1. Fig. 3 is a side view of the device, and Fig. 4 is an elevation of a spider upon which the contact-wheels are mounted.

Like numerals designate similar parts in all of the fi ures of the drawings.

The e evator-signal herein shown and-de-' scribed is preferably located upon the top of the elevator, in such position that the wires 5 and 6 (showrrin dotted lines in Fig. 2) may be engaged by the'contact-wheels, as'will be hereinafter described. The device'comprise's a base 7, carrying a frame 8, said frame hav-. ing a horizontal portion 9 and the vertical portions 10 and 11.

Mounted for limited oscillatory movement in bearings 12 and 13 of standards 10 and 11 is a shaft 14, having secured upon its outer end a spider 15, comprising arms 16, 17, 18, and 19. Stops and 21, secured upon shaft 14 by means of screws 22 and 23, hmit the movement of said shaft in either direction. A transverse arm'24, secured to shaft 14 by a screw 25, carries a weight 26, adjustable upon said transverse arm and having a set-screw 24, whereby saidwei ht may be secured in osition when adjusted. Secured to the hor1zontal portion 9 of frame 8 is av bracket havinga depending portion 28,

upon which an electric switch 29, controlled by button 30, is su ported.

Mounted upon the outer ends of arms 16, 17 18, and 19 of spider 15 are contact-wheels 31, 3,2, 33, and 34,- having grooved peripheries for the reception of wires 5 and 6. Supported upon a rod 35, rising. from frame 8, is a signal member 36, shown in the present. 111- ,stance as an electric bell, though the invention is not limited to any specific form of signal, but compriseabroadly, the provision of means for maintaining a continuous and complete contact between wires 5 and 6 and terminals 37 and 38 whatever may be the na ture of the device to which said terminals are connected. 1 I

Contact-wheels 31, 32, 33, and 34 are rotatively mounted upon short shafts 39, 40, 41, and 42, secured in perforations 43, 44, 45, and 46by means of nuts and washers 47, 48, ,49, and 50. Shafts 39, 40, 41, and 42 are continued to form binding-posts. The connections between the contact-wheels and the signal-terminals are arranged as follows: A WII'B 51 is secured to the bindingost formed by shaft 42 by means of a bin ing-nut 52, which clam s said wire against nut 50. Said .wire 51 is Seen secured to the binding-post formed by shaft 39 by a binding-nut 53, whence it is continued through aperforated extension 54 of spider 15 to terminal 38 of signal 36. A second wire 55 is secured to the shaft or binding-post 41 by binding-nut 56 and passes thence to shaft or binding-post 40, to which it is secured by a binding-nut 57. It then passes through extension 54 of spider 15 and is secured to one of the terminals of switch 29. A third Wire 58 leads directly from the other terminal of said switch to terminal 37 ofsignal 36. The contact-wheels are insulated from the arms of the spider by suitable insulation, (indicated at 59, 69, 61

and 62.) Wires 5 and 6 extend the full length of the elevator-shaft and have the usual con nections at each floor of the building whereb the circuit through said wires maybe comp eted by push-buttons or analogous devices.

The operation of the device is as follows: As the elevator ascends and descendsthe shaft in which it is located contact-wheels 31 and 34 engage wire 6, as shown in Fig. 2, said wire lying in the grooved peripheries of said wheels. Wire 5 is likewise engaged by contact-wheels 32 and 33, all of said wheels being kept firmly in engagement with said wires by the action of the weight 26, which tends to turn shaft 14 and spider 15 to the right in Fig. 2. As illustrated in Fig. 2 of the drawings, the'weight 26 is in position to have turned the spider to the right sufficiently to have brought the contact-wheels into engagement with the wires 5 and 6, and the weight :26- is held in this its normal position by means of the stop 21, which engages the horizontal portion 9 of the frame. Should it be found desirable to permit the weight to move downward from its normal position and turn the spider farther to the right in order to move the contact-wheels to accommodate for any slack that may occur in the wire, this may be accomplished by adjusting the stop 21 in a manner that should be apparent. During the desc'ension of the elevator the spider has a tendency to turn to the left in Fig. 1, and this movement of the spider is limited, so as to prevent the contactwheels from being moved out of engagement with the wires 5 and 6 by means of the stop 20, which engages the opposite side of the horizontal portion 9 of the frame. The stop 20 is adapted to be adjusted to accommodate for any adjustment of the stop 21. The stop 20 is held normally spaced from the horizontal portion 9 of the frame to permit the spider to have a limited movementto the-left in Fig. 2, as it has been found desirable to permit the spider to have such movement. When a person desiring to signal the elevator operator presses a button and completes the circuit to wires 5 and 6,,the current is transmitted through wire 5 to contactwheels 32 and 33, and thence through the connections described to terminal 37 of the signal device and through wire 6 to contact wheels 31 and 34, and thence through the connections described to the other terminal 38 of the signal devi'ce, thereby causing said signal to sound. By providing switch 29 the elevator operator may throw the signal device out of action when he so desires.

From the foregoing description it will be seen that simple and efficient means have been provided for accomplishing the object soughtnamely, maintaining a complete and continuous contact between an elevator and points extraneous to said elevator-and while the elements herein shown and described are well adapted to serve the purposes for-which they are intended it is to be understood that the invention is not limited to the precise devices shown, for changes in minor details may be made without departure from said invention. It is apparent that the fore going contact device will serve equally as well for a telephone or electriC-light coin neetion as for a signal connection, and it is my'intention to employ it in those capacities.

Having thus described my invention, What I claim is 1. In a contact device for elevator-signals, the combination with a pair of current-carrying Wires, of two pairs of contact members, a single means for retaining the contact members in engagement with the wires, and means for limiting the movement of said contact members to prevent them from becoming disengaged from the wires.

2. In a contact device for elevator-signals, the combination with a pair of current-carrying wires, of a frame, a shaft mounted onthe frame, a spider carried by said shaft, contact members carried by said spider, a signal device, means for connecting said contact members with the signal, means carried by the said shaft for retaining the contact members in engagement with the wires, and

means for engagement with the frame to pre'-' vent the contact members disengaged from the wires.

8. In a contact device for elevator-signals, the combination with a pair of current-car rying wires, of a frame, a shaft carried by the frame, a spider carried by the shaft, contactwheels carried by the spider and insulated therefrom, means for connecting the contact wheels with a signal device, a weighted arm secured to the shaft to retain the contact wheels in engagement with the wires, and arms secured to the shaft to engage the frame and limit the movement of theshaft in either direction.

4. In a contact device for elevator-signals, the combination with a pair of current-carrying wires, of a shaft, contact members car'- ried by said shaft, means carried by said shaft for retaining the contact members engagement with the Wires, and means carried by said shaft for limiting the movement of said contact members to prevent themfrom becoming disengaged from the wires.

5. In a contact device for elevator-signals, the combination with a pair of current-carrying wires, of a shaft, two pairs of contact members carried by said shaft, and a sin le from becoming means carried by said shaft for retaining t e contact members engagement with the Wires.

6. In a contact device for elevator-signals, the combination with a current-carrying wire, of a frame, a shaft carried by the frame, a contact member carried by the shaft, means carried by the shaft to retain the con'' tact member normally in engagement with the wire, and means carried by the shaft and adapted to engage the frame to limit the movement of the contact member in bothdirections" relative to. the wire to prevent the contact member from becoming disengaged from the wire;

7. In a contact device for elevator-signals,

5 the combination with a pair of current-carv rying wires, of a shaft, two pairs of contact 1 Witnesses members carried by the shaft, and a single F. D.-MODONALD,' andadjustable means for. retaining the con- OTTO KAAS.

taet members in engagement with the wires,

, In testimony whereof I afix my signature in presence of two witnesses.

JERRY KING;

said means being earned by the shaft. m I 

